Updated pkglint to 4.84.
Changes since 4.82:
- Whenever a Makefile.common is included by another file, that file should
be mentioned in the Makefile.common.
- Added spell checker for .if directives.
- Added warnings for uncommented patches (only for -Wstyle).
- Added spell checker for invalid macro names, like __NetBSD_Version.
- Deprecated INSTALLATION_DIRS_FROM_PLIST in favor of AUTO_MKDIRS.
- Many more small things.